Paper-bag machine.



Nb. 726,528. 'PATENTED APR. 2s. 1903.

` M. HAIGH'.

PAPER BAG MACHINE.

APPLIoATroN FILED JUNE mi*l 1902.

NO MODEL. 3 SHEETS-SHEET 1.

No. 726,528. PATBNTED APR. 28, 1903. M. HAIGH.

PAPER BAG MACHINE.

APPLIoATIoN FILED JUNE 2s, 1902.

N0 MODEL.

a SHEETS-#SHEET z.

PATENTED APB.. 28, 19031.

M. HAIGrH.4 PAPER BAG MACHINE.

APPLIUATION II JUNE 26,' 1902.

3 SHEETS-SHEET 3.

N0 MODEL.

me wams grens co. umu-uwe.. msnmamn, u. c.

UNiTnD STATES FnTnNT Fries.

MASON HAIGII, OF OINOINNA'II, OHIO. p

PAPER-BAG MACHINE.

SPECIFICATION forming part of Letters Patent No. 726,528, dated April.28, 1903.

Application filed June 26. 1902. Serial No. 113,271. (No model.)

To all whom t may concern: Be it known that I, MASON IIAIGH, a citizenof the United States, residing at Cincinnati, in the county of Hamiltonand State of Ohio, have invented certain new and useful Improvements inPaper-Bag Machines, of which the following is a full, clear, and exactdescription, reference being had to the accompanying drawings, formingpart of this speciiication.

My invention relates to machines for making paper bags, and moreparticularly to that class of machines which makes bags with side seamswhose edges are turned over and pasted to the opposite side of the bagin contradistinction to that class of machines known as Satchel-bottombag machines; and the object of my invention is to provide a simple,strong, and rapidly-running machine capable of turning out largequantities of these envelop-shaped bags and which machine with slightalterations might be made to turn out ordinary envelope for mailingpurposes.

The novelty of my invention will be hereinafter set forth, andspecifically pointed out in the claims.

In the accompanying drawings, Figure l, Sheet 1, is a side elevation ofa machine embodying myinvention. Fig. 2, Sheet 2, is an end view of Fig.1 looking toward the right. Fig. 3, Sheet 2, is an enlarged brokenelevation of the iinishing-cylinder and the gripping mechanism appliedthereto. Fig. 4, Sheet 3, is an enlarged broken elevation of the face ofthe finishing-cylinder and associated parts. Fig. 5, Sheet 3, is adiminished diagrammatic view of a portion of the web of paper,indicating the operations performed upon it as it passes through themachine.` Fig. 6, Sheet 3, is a perspective view of the completed bag asit comes from the machine.

The same letters of reference are used to indicateidentical parts in allthe figures.

Referring now to Figs. l and 2 and describing what is well known to theart in this class of machines, it is only necessary to say that A is anysuitable and substantial framework, upon which is journaled a guide-rollB, over which the web of paper O from its roll D enters the machine andfirst passes between a pair of printing-cylinders E, that print whateveris desired upon one or both surfaces of the bag. VThe web of paperthence passes horizontally between a pair of slitting-rollers F, whichdivides the web longitudinallyinto two equal parts, beginning at CL, asseen in Fig. 5. From these rollers the divided web of the paper passesbetween cutting-rollers Gr, which cnt out strips on both sides, asindicated by the dotted lines b of Fig. 5. From the cutting-rollers Grthe divided web of paper passes between folding mechanism H ofwell-known construction in this class of machines which turns over thatportion of the paper between the cut-out strips b and in line therewith,as indicated at c in both Figs. 5 and 6. From this folding mechanism theweb of paper passes between a pair of rolls Lwhich press down the foldedside strips mentioned above.

All of the foregoing mechanism is old and well known to the art andneeds no further description, and the machinery, is driven by a commondriving-shaft J, with belt-pulleys, fast and loose, K at one end, Fig.2, with a ily-wheel L on the opposite end, and with a series ofconnecting-gears M for al1 of the operating-shafts of the differentrelis on one side of theV machine, as clearly indicated in Fig. 2.

From the rolls I the paper passes downward and backward, as indicated bythe arrow in Fig. 1, over the top ofthe iinishing and gripping cylinderwhich forms the essential subject of my present invention. As it Vpassesunder the bottom roll I and is received upon the finishing-cylinder N itis first caught by the gripping mechanism,(indicated at O, Fig.

1,) and thence passes to a series of pastingwheels P, which are commonto this class of machines and which apply paste to the foldedoverport-ions c, between the cut-out portions b. Thence the paper passesbetween the iinishing-cylinder and a two-bladed creasing and cuttingmechanism on a shaft R, Fig. 1, that first makes a transverse crease onthe dot-dash line e of Fig. 5, and then, as the paper passes through toa proper `distance and the shaft R has made a half-revolution, seversthe web, which severance may be a straightl line or may be angular fromthe center to each end after the manner of an envelop-flap, as desired.After creasing and before severance the divided web ef paper is IOOcarried from the creasing and cutting mechansm between theinishing-cylinder and a series of pressing-rollers S,Figs. l and 2,whichpress down the folded aps at the edges and effect the pasting of thefront to the back of the bag, and thereby complete the same.

Now, referring to Figs. 3 and-4, I will describe the mechanism by whichthe web of paper is gripped to the finishing-cylinder, is carried aroundthe same and released therefrom. The finishing-cylinder N is preferablymade of a size to turn out three complete bags at each revolution, andit therefore has three sets ofgrippng mechanisms,three creasingdepressions, three cutting depressions, and three sets of gravity-pinsfor insuring the detachment of the cut edge of the bag from thefinishing-cylinder before the bag passes between the finishing-cylinderand the pressing-rolls S. With a finishing-cylinder of this size thereare accordingly three sets of these mechanisms,(a larger cylinder wouldrequire more,) and now I will proceed to describe the grippingmechanism. This mechanism is carried in transverse grooves on the faceof the finishing-cylinder N and consists of two bars T, Fig. 4, eachnormally projected outwardly by coiled springs f at their ends beyondthe edge of the cylinder and with their ends beveled to engage cams g,secured to the side of the frame A. Each of the bars T has upon it apair of gripping-plates 7L, so located as to come over the outer edgesof the severed web of the paper, their position being shown .when-theyare not gripping the papel' in Fig. 2 and by the dotted lines of Fig. 4,and their position being shown when over the edge of the paper to gripit by the solid lines of Fig. 4.

The before-mentioned action of the rods under the action of the cams gand springsf is simply to inove them in and out. In addition to thismovement the plates h, which grip the paper, have an action imparted tothem by a shaft U with fingers V, Figs. 3 and 4, which, pivoted on theinner side of the finishing-cylinder, bear against the inner side of thebars T, with interposed springs j on studs 7c projecting inward fromsaid bars, as seen in Figs. 3. The outer ends of the shafts U areprovided with crank-arms W, Fig. 3, which ride on the under side of thecamsg and throw out the gripping-arms t just at the point when thepasted bag has passed the rolls S, and thus release them from thefinishing-cylinder, and they are permitted to drop in any suitablereceptacle placed to receive them.

In addition to the gripping and releasing mechanism just beforedescribed I have provided gravity-pins X, projecting through the face ofthe finishing-cylinder adjacent to the cutting-slots l, which as thefinishing-roller descends and the web is severed are permit= ted to slipthrough the cylinder to insure the knocking off of the severed edge ofthe bag before the bag passes between the finishingcylinder and thepressing-rolls S.

By the machine described I am enabled to turn out completed printed bagsvery rapidly and by very simple and eliicient mechanism, the machinedescribed being arranged to turn out six completed bags for eachcomplete revolution of the finishing-cylinder N, the web of paper havingbeen divided in two, so that when it reaches the finishing-cylinder twocomplete bags, side by side, are dropped olf at the same time.

In Fig. l the creasing-blade h is shown as just entering the creasingdepression m on the finishing-cylinder to crease the bags at theirmiddles,while the severing-blade o will under the adjustment of theparts enter the severing depressions Z to the right to sever the bagsfrom the web, as will be readily understood.

l.Having thus fully described myinvention, I claim- 1. In a paper-bagmachine, the combination with folding and cutting mechanism, of afinishing-cylinder, transverse grooves in the periphery of saidcylinder, transverse bars in said grooves, with their outer faces flushwith the periphery of the cylinder, mechanism for actuating said barslongitudinally at `predetermined distances in the travel of thecylinder, gripping-jaws carried by said bars, mechanism for actuatingsaid bars to cause said jaws to grip and release the paper atpredetermined times in the travel of said cylinder, creasing andsevering grooves transversely arranged within the periphery of saidcylinder, and creasing and severing mechanism for creasing and severingthe bags transversely at predetermined times in the travel of saidcylinder, substantially as described.

2. In a machine of the character described, the combination of theframe, the cams g, secured thereto, the finishing-cylinder N journaledbetween said cams, the recessed bars T arranged transversely of theperiphery of the cylinder and actuated in one direction by one set ofcam-surfaces, the gripping-jaws 7L carried by said bars, the levers V W,the former connected to the bars T and the latter actuated by the otherset of cam-surfaces of the cams g, and the transverse creasing andsevering depressions ml respectively, the creasing and severing blades no carried by the shaft R, and the gravity-pins X, substantially as andfor the purpose specified.

f MASON HAIGII. Vitnesses:

WM. J. PEcK, EDWARD PECK.

ITO

